ANALYTICS
SNFG glycan cartoons stopped being pictures and became ggplot2 geoms, guides and axis labels.
Alternatives · analytics tools
ibdsim2 alternatives
The best ibdsim2 alternatives in analytics tools, ranked by Sparkpulse's velocity_score.
Updated Aug 16, 2026
Looking for the best alternatives to ibdsim2? Sparkpulse tracks and ranks 12 alternatives in analytics tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, ibdsim2 shipped 0 meaningful updates in the last 30 days and carries a velocity score of 2.5 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About ibdsim2
A pedigree IBD simulator that absorbed its own web app and now optimises for dense marker panels.
ibdsim2 simulates identity-by-descent sharing along chromosomes for arbitrary pedigrees, in both autosomal and X-chromosomal form, with downstream tools for segment statistics, pattern finding and distribution plots. Since 2.1.0 the Shiny front end lives inside the package and launches via launchApp() rather than sitting in a separate repository. The latest release is performance work, with profileSimIBD() substantially sped up for dense marker panels and ibdsim() skipping recombination in pedigree branches that cannot affect the result.
Velocity 2.5 · Last update 35m ago
Top 12 alternatives to ibdsim2
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
ANALYTICS
Glycan biosynthesis as a traceable enzyme graph, now including sulfation and gaps it can bridge.
ANALYTICS
vellumwidget is dissolving its own API: interaction now lives in the plot spec, not the widget call.
ANALYTICS
A meta-package whose entire changelog is a version pin, tracking an ecosystem moving faster than it is.
ANALYTICS
Glycan annotation stops depending on the database having seen the structure before.
ANALYTICS
A glycan motif matcher trading convenience wrappers for speed, strictness and explicit specs.
ANALYTICS
The type system the rest of the glycan stack is built on, being hardened one breaking change at a time.
ANALYTICS
Forensic kinship testing with linked STR markers, now peer-reviewed and taking data from anywhere.
ANALYTICS
The pedsuite's coefficient engine: broadening what it computes, then making the plots publishable.
ANALYTICS
An individual-based malaria model that grew a second parasite species, then froze itself for reproducibility.
ANALYTICS
The Manhattan-plot package for GWAS results, finished and dormant since 2017.
ANALYTICS
The R package for CODATA constants rebuilt its symbol table on NIST's naming so future updates stop being hand work.
ibdsim2 vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| ibdsim2 (baseline) | 2.5 | 0 | statistical-geneticspedigree-analysissimulation | The Shiny front end moves into the package and gains X-chromosomal simulation |
| glydraw | 6.3 | 1 | glycomicsdata-visualizationggplot2 | Glycan cartoons become ggplot2 geoms, legends and axis labels |
| glyenzy | 6.3 | 1 | glycomicsbiosynthesisenzyme-inference | Sulfotransferases become first-class, and unsupported steps can be bridged |
| vellumwidget | 6.3 | 1 | r-graphicsinteractive-widgetsdeclarative-interaction | Interaction moves into the plot spec; as_widget() sheds a third of its arguments |
| vellumverse | 5.0 | 0 | r-graphicsmeta-packagedependency-management | — |
| glyanno | 3.8 | 1 | glycomicsmass-spectrometrystructure-annotation | De novo reconstruction of topological N-glycans, with database fallback |
| glymotif | 2.5 | 0 | glycomicsmotif-matchinggraph-algorithms | — |
| glyrepr | 2.5 | 0 | glycomicsdata-structurestype-system | — |
| KLINK | 2.5 | 0 | forensic-geneticskinship-testingstr-markers | Markers pair dynamically against a 50-marker map, replacing hard-coded pairs |
| ribd | 2.5 | 0 | statistical-geneticspedigree-analysisrelatedness-coefficients | — |
| malariasimulation | 0.0 | 0 | epidemiologymalariasimulation | Plasmodium vivax model lands: hypnozoites, competing hazards, equilibrium |
| qqman | 0.0 | 0 | gwasgenomicsmanhattan-plot | — |
| constants | 0.0 | 0 | physical-constantscodataunits | constants 1.0.0 |
The 12 best ibdsim2 alternatives, in depth
1. glydraw · velocity 6.3
SNFG glycan cartoons stopped being pictures and became ggplot2 geoms, guides and axis labels.
Over the last 30 days glydraw shipped 1 meaningful update vs ibdsim2's 0, most recently “Glycan cartoons become ggplot2 geoms, legends and axis labels”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, glydraw focuses on glycomics, data visualization and ggplot2.
Over the last 30 days glydraw has been shipping faster than ibdsim2 — a point in its favour if release momentum matters to you.
2. glyenzy · velocity 6.3
Glycan biosynthesis as a traceable enzyme graph, now including sulfation and gaps it can bridge.
Over the last 30 days glyenzy shipped 1 meaningful update vs ibdsim2's 0, most recently “Sulfotransferases become first-class, and unsupported steps can be bridged”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, glyenzy focuses on glycomics, biosynthesis and enzyme inference.
Over the last 30 days glyenzy has been shipping faster than ibdsim2 — a point in its favour if release momentum matters to you.
3. vellumwidget · velocity 6.3
Vellumwidget is dissolving its own API: interaction now lives in the plot spec, not the widget call.
Over the last 30 days vellumwidget shipped 1 meaningful update vs ibdsim2's 0, most recently “Interaction moves into the plot spec; as_widget() sheds a third of its arguments”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, vellumwidget focuses on r graphics, interactive widgets and declarative interaction.
Over the last 30 days vellumwidget has been shipping faster than ibdsim2 — a point in its favour if release momentum matters to you.
Full vellumwidget trajectory → · Compare ibdsim2 vs vellumwidget →
4. vellumverse · velocity 5.0
A meta-package whose entire changelog is a version pin, tracking an ecosystem moving faster than it is.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, vellumverse focuses on r graphics, meta package and dependency management.
vellumverse and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full vellumverse trajectory → · Compare ibdsim2 vs vellumverse →
5. glyanno · velocity 3.8
Glycan annotation stops depending on the database having seen the structure before.
Over the last 30 days glyanno shipped 1 meaningful update vs ibdsim2's 0, most recently “De novo reconstruction of topological N-glycans, with database fallback”. Its velocity score of 3.8/10 blends that with longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, glyanno focuses on glycomics, mass spectrometry and structure annotation.
Over the last 30 days glyanno has been shipping faster than ibdsim2 — a point in its favour if release momentum matters to you.
6. glymotif · velocity 2.5
A glycan motif matcher trading convenience wrappers for speed, strictness and explicit specs.
Its velocity score of 2.5/10 reflects longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, glymotif focuses on glycomics, motif matching and graph algorithms.
glymotif and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
7. glyrepr · velocity 2.5
The type system the rest of the glycan stack is built on, being hardened one breaking change at a time.
Its velocity score of 2.5/10 reflects longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, glyrepr focuses on glycomics, data structures and type system.
glyrepr and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
8. KLINK · velocity 2.5
Forensic kinship testing with linked STR markers, now peer-reviewed and taking data from anywhere.
Its velocity score of 2.5/10 reflects longer-term release cadence; its most recent meaningful update was “Markers pair dynamically against a 50-marker map, replacing hard-coded pairs”.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, KLINK focuses on forensic genetics, kinship testing and str markers.
KLINK and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. ribd · velocity 2.5
The pedsuite's coefficient engine: broadening what it computes, then making the plots publishable.
Its velocity score of 2.5/10 reflects longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, ribd focuses on statistical genetics, pedigree analysis and relatedness coefficients.
ribd and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
10. malariasimulation · velocity 0.0
An individual-based malaria model that grew a second parasite species, then froze itself for reproducibility.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “Plasmodium vivax model lands: hypnozoites, competing hazards, equilibrium”.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, malariasimulation focuses on epidemiology, malaria and simulation.
malariasimulation and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full malariasimulation trajectory → · Compare ibdsim2 vs malariasimulation →
11. qqman · velocity 0.0
The Manhattan-plot package for GWAS results, finished and dormant since 2017.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, qqman focuses on gwas, genomics and manhattan plot.
qqman and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
12. constants · velocity 0.0
The R package for CODATA constants rebuilt its symbol table on NIST's naming so future updates stop being hand work.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “constants 1.0.0”.
Where ibdsim2 leans on statistical genetics, pedigree analysis and simulation, constants focuses on physical constants, codata and units.
constants and ibdsim2 have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full constants trajectory → · Compare ibdsim2 vs constants →
Frequently asked questions
What are the best alternatives to ibdsim2?
The top ibdsim2 alternatives we currently track in analytics tools are glydraw, glyenzy, vellumwidget, vellumverse, glyanno, ranked by recent ship velocity.
How is this list of ibdsim2 alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare ibdsim2 directly with one of these alternatives?
Yes — every card has a "Compare with ibdsim2" link to a side-by-side /compare page.